[Insight-users] simplest way to find the zero level set ( no evolution necessary)

[quantumLeaf]

ok...

what class to use to find a single level set of an implicit function?

Liam




quantumLeaf wrote:
> 
> Hi,
> 
> I want to use ITK to find the zero level set of an implicit function. 
> I want to find a list of points about the zero contour so that i can
> perform a numerical integration over it. 
> I've been reading the manual and looking at the level set methods in ITK.
> These methods seem to be more complicated than i need since i dont wish to
> evolve the embedding function in ITK. 
> 
> It trying to implement the method described in 
> 'A Variational Approach to the Evolution of Radial Basis Functions for
> Image Segmentation'
> http://www.cs.stevens.edu/~quynh/papers/Slabaugh_RBFevolution_CVPR07.pdf
> 
> The function is a sum of RBFs. Once i can do the integration over the zero
> contour of the current state of the field i can evolve the RBF parameters. 
> 
> How can i use ITK to get coordinates along the zero level set of my
> function? 
> 
> if anyone reading can see some conceptual mis-understanding or problems in
> my approach, please let me know.
> 
> best regards,
> 
> Liam
> 
> 
> 

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